Universal joint.



E. BETTS.

UNIVERSAL JOINT.

APLIGATION FILED-MAY 20, 1912. Patented 1 if /7 l 27 r A ZZ ma l @Mvc/nto@ /3 0L /g Z4 f8 fipa/vizi),

EVERETT BETTS, 0F DETROIT, MICHIGAN.

UNIVERSAL JOINT.

rescates.

Spccilca'tion of Letters Patent.

ral-elllen July gl., 1913.

Application tiled May 20, 1912. Serial No. 698,362.

To all l0/lem it may concern:

Be it known that l, llvnlnl'ln Bll'rls, a citizen of Great Britain, residing at Detroit, ill the county ol Wayne and State of Michigan, have inventell certain new alld useful Improvements in Universal Joints, of whicll the 'following' is a specitication.

This invention relates to universal joints, and it has for its object the provision of a simple and easy-movement joint which can he readily taken apart and reasselllllled.

The invention has been cteal'ly illustrated in the accompanying' drawings, in which silnilar characters denote similar parts, and in which Figure 1 illustrates a side view of a universal joint embodying' my invention, llig. .2 is a vertical longitudinal section thereot', and Fig. 3 shows a section on lille tl, il of Fig. 2.

Referring' to the drawings, it() alld Vll represent a pair of shafts whlch al'e coupled lly lily improved joint which comprises a socket-section l2 secured to the shaft l0 alld having a central spherical recess 13 adapted to receivn one-half of a ball lnelnher 14 which is secured to or l'orlns a part of the shaft l1. The socket lnelnhel' l2 is cul away as at l2' to provide a seating surlace for a cap l5 which has a recess t5 siulilar lo the recess 13, to cooperate therewith ill t'orlllilllg' the eolllplete socket :for the hall lll. 'tlhe ,tront ends of the cap a lld soeket sections al'e cut out, as at 1G to allow play tor the deflection o't' the shailts, and the cap is held in place hy screws 17.

llleans` al'e provided for e,lllsillg rv both shafts to he rotated ill unison, these lneans constituting the principal feature ot the present invention and comprising a crossspindle 2() which has at `its ends a pair of crown-faced heads` 2l. which lnay he secured to the spindle or he integral therewith provided however that their diameters al'e et the saule sine. lhese heads are disposed within arcuate recesses Q2 `lorlned ill the socket alld cap-nlelnllers 12, l5, so tllat they luay swing); around the center ot' the l'lall ll, and tile outer ellds of the heads al'e preferahly crowned to correspond to the curvature ot' the ollter recess-walls 22.

,lhe spindle 20 is journaled ill the ball 1.4-,

hy sets ot' anti-'friction halls 23%, Qt, running in ,races or grooves 25, ilt ill the spindle and engaging the inner cylindrical surt'llce of an aperture or perforation 27 ill the hall t4. the outer edges QT of which are pl'eterahl)v spun inward and thus hold the spindle and halls 2H, 2t ill place witllill the hall l=t when the latter is taken ollt ot the socket.

Rotation ot the hall lll; ill the direction of arrow a (Fill: il) will result in causing the spindle ends, or heads to contact with the hottonl walls ot the recesses 7l, and if (as ahovc stated) the diameters of the heads are. the saule, alld also eouialistant from the center ot the hall lfi, a pel't'cct and l'ree rolline' action hetween spindle alld socket lllclnller will result with hotll heads rotating' ill unison alld without drag on either one or the other, ol' hoth, when the. axes ot' tlle sha'l'ts lt) alld ll are out ot alinen'lent, alld they al'e rotated ill that condition.

l elailnz l. universal join'tl comprising a two part socket lllelllhel' having' a central spherical recess and a pair ot diallletricallly opposite arcuate recesses. a hall ill the spherical recess, and :l spindle journaled ill said hall alld havingiutell'l'al crowned heads engaging' said arcuate recesses, and provided with a pail' ot All 'e\\'ays, allti-liriction halls ill .said raceways alld engaging' said "lali, alld nlealls for holding' said spindle, lllltllriction halls, and the said hall together.

universal joint comprising a twopart socket. l'nelnl having a spherical l'e cess alld a pail' of dialuetl" `ally-opposite al'- euate recesses, a sphere ill the spherical recess all'd having' a cylindrical perforation, a spindle, and antid'l'ictiou halls between said spindle alld the surilace ot' said perforation, said spindle projectingl through said perforation into said arcuate recesses, and the edges of said perforation heilig contracted to retain the spindle, antil'l'iction halls alld sphere together.

ln testimony whereot Vl allix lny signature ill lll'esence o'l" two witnesses.

Il) V IGR [CTT l l ICTTS.

W i t n esses lli. L. (lowlacs, ll. l). h'laolloxlual.

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